In-ear noise dosage device and method for evaluating noise level according to operating posts

A dose device and in-ear technology, applied in the field of audiometry devices, can solve the problems of reduced data accuracy, large size, individual noise protection and noise reduction processing missing field data, etc., and achieve the effect of reasonable noise collection points

Inactive Publication Date: 2020-06-05
中国人民解放军总医院第六医学中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These devices are too bulky, and most of them have external wiring, which is inconvenient to operate
Existing noise dosimeters are all wired box-type devices, and their noise collection microphones are far away from the external auditory canal of the subject. The noise exposure dose information that can be provided is extremely unstable and is easily disturbed or affected by near-field noise around the body, which greatly reduces data accuracy
However, the personal wireless noise measuring instrument currently used in foreign countries has a small shape of only about 50 grams, without connecting wires, control buttons and displays.
Although the device can be worn on the subject's shoulder for testing, it belongs to near-field detection, but because it is not real-ear real-time monitoring, it is far away from the exposed ear, and it is still unable to accurately and real-time obtain the

Method used

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  • In-ear noise dosage device and method for evaluating noise level according to operating posts
  • In-ear noise dosage device and method for evaluating noise level according to operating posts
  • In-ear noise dosage device and method for evaluating noise level according to operating posts

Examples

Experimental program
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Effect test

Embodiment 1

[0044] The in-ear noise dosing device includes an in-ear noise dosimeter 100, a dedicated data transmission device 200, and a computer 300 placed in the human external auditory canal. The in-ear noise dosimeter 100 is connected to the computer 300 through the dedicated data transmission device 200; the computer 300 exports the data. The stored data is available for users to view and analyze. The in-ear noise dosimeter 100 is used as the noise measurement unit to measure and record the actual noise exposure of the operator under test. The in-ear noise dosimeter 100 includes a casing 101 that fits the shape of the human external auditory canal. The casing 101 is provided with a miniature microphone 102, an ultra-miniature digital signal processor 103, a battery 105, and a communication interface 106. The miniature microphone 102 is connected to the audio input (MIC) interface on the ultra-miniature digital signal processor 103. The sound hole of the miniature microphone 102 is co...

Embodiment 2

[0058] A method for assessing the noise level by job position. The specific steps are as follows: First, wear the in-ear noise dosimeter 100 in the external auditory canal of the tested person, and record the true value during the test period when the wearer does not take noise protection measures. The actual noise exposure of the ear, and after the test time is over, the computer 300 downloads the recorded data through the special data transmission device 200, and calculates the noise exposure level of the work position of the test subject during the test period through statistical analysis. From this, the noise exposure level of the job is evaluated.

[0059] Further, when wearing the in-ear noise dosimeter 100, the wearer wears noise protection measures such as earmuffs that can block noise or active noise reduction headphones outside the ear canal to evaluate the effect of noise reduction measures. It will not affect noise protection measures such as wearing earmuffs that can...

Embodiment 3

[0065] An in-ear noise dosing device is composed of an in-ear noise dosimeter 100, a special data transmission device 200, a computer 300 and client software. It is characterized in that the in-ear noise dosimeter 100 is composed of a micro microphone 102 (EM24346 of Lou's Electronics), an ultra-micro digital signal processor 103 (Ezairo 5920 of ON Semiconductor), a battery 105 (10A zinc-air battery 105) and a laminated It is composed of a housing 101 in the shape of a human ear canal and a communication interface 106. The in-ear noise dosimeter 100 can be connected and communicated with the computer 300 through a dedicated data transmission device 200, and the stored data can be exported through the client software on the computer 300 for the user to view and analyze.

[0066] The in-ear noise dose device obtains the sound pressure data of each frequency through a microphone and a digital signal processor, calculates and averages the sound intensity, and then records the average...

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Abstract

The invention relates to an audiometry device and the related field of use thereof, and specifically relates to an in-ear noise dosage device and a method for evaluating noise level according to operating posts. The in-ear noise dosage device comprises an in-ear noise dosimeter, special data transmission equipment and a computer. The in-ear noise dosimeter is connected with the computer through the special data transmission equipment. The in-ear noise dosimeter comprises a machine shell fitting the shape of an external auditory canal of a human body. A miniature microphone, an ultra-miniaturedigital signal processor, a battery and a communication interface are arranged in the machine shell. The device can be placed in the auditory meatus after being miniaturized, so that the device has the advantages that the noise collection points are more reasonable, the obtained noise exposure level value is more valuable, and the noise level of a post can be reflected more accurately compared with a measurement result of one or more fixed points.

Description

Technical field [0001] This application relates to audiometry devices and related fields of their use, and in particular to an in-ear noise dosing device and a method for assessing noise level by job position. Background technique [0002] Exposure to strong ship noise (including steady-state noise and impulse noise) often leads to acute and chronic auditory system damage. In order to clarify the pathogenesis of noise-induced hearing loss and screen the susceptible population of noise-induced hearing loss, it is urgent to establish real-time monitoring of noise exposure intensity and crew Professional platform and technical means for dynamic detection of hearing condition and noise reduction effect evaluation of existing noise prevention facilities. [0003] The noise measurement tool still in use in our country is the noise sound level meter. This type of device is too large, most of which have external wiring, which is inconvenient to operate. Existing noise dosimeters are all ...

Claims

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Application Information

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IPC IPC(8): H04R29/00
CPCH04R29/001
Inventor 孙建军蒋涛刁明芳夏世雄蒋一宁闫一鸥
Owner 中国人民解放军总医院第六医学中心
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